Add documentation for new bosch alarm integration (#37458)

source/_integrations/bosch_alarm.markdown

@@ -0,0 +1,65 @@
+---
+title: Bosch Alarm
+description: Integrate Bosch Alarms.
+ha_category:
+  - Alarm
+ha_release: 2025.4
+ha_iot_class: Local Push
+ha_config_flow: true
+ha_codeowners:
+  - '@mag1024'
+  - '@sanjay900'
+ha_domain: bosch_alarm
+ha_platforms:
+  - alarm_control_panel
+ha_integration_type: integration
+---
+
+The **Bosch Alarm Panel** {% term integration %} allows you to connect your [Bosch Alarm Panel](https://www.boschsecurity.com) to Home Assistant to control and monitor your Bosch Alarm Panel.
+
+{% include integrations/config_flow.md %}
+
+## Supported devices
+
+- _Solution 2000/3000/4000_
+- B Series: _B3512/B4512/B5512/B6512_
+- G Series: _B8512G/B9512G_
+- _AMAX 2100/3000/4000_
+- _D7412GV4/D9412GV4_ [^1]
+
+[^1]: Firmware 2.0+
+
+## Provided entities
+
+The following {% term entities %} are provided:
+
+- [Alarm Control Panel](#alarm-control-panel)
+
+### Alarm Control Panel
+
+This integration adds an Alarm Control Panel device for each configured area, with the ability to issue arm/disarm commands.
+This entity reports state (_disarmed_, _armed_away_, etc.).
+
+## Authentication
+
+The primary means of authentication for the _Mode 2_ API is the _Automation_ passcode. It needs to be at least 10 characters long, and it is different from the _User_ code -- a shorter numeric pin used to arm/disarm the panel.
+The integration will prompt for the required passcodes, which depend on the panel type.
+
+| Panel | Code |
+| --- | --- |
+| Solution | User [^2] |
+| B Series | Automation |
+| G Series | Automation |
+| AMAX | Both |
+
+[^2]: The user needs to have the "master code functions" authority if you wish to interact with history events.
+
+{% important %}
+Since the _Mode 2_ automation user has "superuser" privileges, it bypasses the regularly configured alarm pin: you will _not_ be prompted for a _User_ code when arming/disarming through the integration.
+{% endimportant %}
+
+## Removing the integration
+
+This integration follows standard integration removal. No extra steps are required.
+
+{% include integrations/remove_device_service.md %}